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Title: WMAP dark matter constraints and Yukawa unification in supergravity models with CP phases

Abstract

The compatibility of producing the observed amount of dark matter, as indicated by the Wilkinson Microwave Anisotropy Probe (WMAP) data, through the relic abundance of neutralinos with Yukawa unification and with the measured rate of b{yields}s{gamma} is analyzed in mSUGRA and extended SUGRA unified models with the inclusion of CP phases. The CP phases affect the analysis in several ways, e.g., through the threshold corrections to the b-quark mass, via their effects on the neutralino relic density and through the supersymmetry (SUSY) contribution to the BR(b{yields}s{gamma}) which is sensitive to the CP phases. We present some specific models with large SUSY phases, which can accommodate the fermion electric dipole moment constraints and give a neutralino relic density in agreement with observations as well as with the b-{tau} unification constraint. The possibility of achieving WMAP relic density constraints with full Yukawa unification is also explored.

Authors:
 [1];  [2];  [2];  [3];  [4]
  1. Departamento de Fisica Aplicada, Facultad de Ciencias Experimentales, Universidad de Huelva, 21071 Huelva (Spain)
  2. Department of Physics, Northeastern University, Boston, Massachusetts 02115-5000 (United States)
  3. (Germany)
  4. Instituto de Fisica, Universidade de Sao Paulo, 05315-970 Sao Paulo, SP (Brazil)
Publication Date:
OSTI Identifier:
20713866
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 72; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.72.095008; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ABUNDANCE; ANISOTROPY; B QUARKS; CORRECTIONS; CP INVARIANCE; DENSITY; ELECTRIC DIPOLE MOMENTS; NONLUMINOUS MATTER; PARTICLE DECAY; RELICT RADIATION; REST MASS; SPARTICLES; SUPERGRAVITY; SUPERSYMMETRY; UNIFIED MODEL

Citation Formats

Gomez, Mario E., Ibrahim, Tarek, Nath, Pran, Max Planck Institute for Physics, Fohringer Ring 6, D-80805, Munich, and Skadhauge, Solveig. WMAP dark matter constraints and Yukawa unification in supergravity models with CP phases. United States: N. p., 2005. Web. doi:10.1103/PhysRevD.72.095008.
Gomez, Mario E., Ibrahim, Tarek, Nath, Pran, Max Planck Institute for Physics, Fohringer Ring 6, D-80805, Munich, & Skadhauge, Solveig. WMAP dark matter constraints and Yukawa unification in supergravity models with CP phases. United States. doi:10.1103/PhysRevD.72.095008.
Gomez, Mario E., Ibrahim, Tarek, Nath, Pran, Max Planck Institute for Physics, Fohringer Ring 6, D-80805, Munich, and Skadhauge, Solveig. Tue . "WMAP dark matter constraints and Yukawa unification in supergravity models with CP phases". United States. doi:10.1103/PhysRevD.72.095008.
@article{osti_20713866,
title = {WMAP dark matter constraints and Yukawa unification in supergravity models with CP phases},
author = {Gomez, Mario E. and Ibrahim, Tarek and Nath, Pran and Max Planck Institute for Physics, Fohringer Ring 6, D-80805, Munich and Skadhauge, Solveig},
abstractNote = {The compatibility of producing the observed amount of dark matter, as indicated by the Wilkinson Microwave Anisotropy Probe (WMAP) data, through the relic abundance of neutralinos with Yukawa unification and with the measured rate of b{yields}s{gamma} is analyzed in mSUGRA and extended SUGRA unified models with the inclusion of CP phases. The CP phases affect the analysis in several ways, e.g., through the threshold corrections to the b-quark mass, via their effects on the neutralino relic density and through the supersymmetry (SUSY) contribution to the BR(b{yields}s{gamma}) which is sensitive to the CP phases. We present some specific models with large SUSY phases, which can accommodate the fermion electric dipole moment constraints and give a neutralino relic density in agreement with observations as well as with the b-{tau} unification constraint. The possibility of achieving WMAP relic density constraints with full Yukawa unification is also explored.},
doi = {10.1103/PhysRevD.72.095008},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 72,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}